Choi's Proof and Quantum Process Tomography

Details Choi's Proof and Quantum Process Tomography Choi's Proof and Quantum Process Tomography

2002-01-25

arxiv.org/abs/quant-ph/0201119v1

J. Math. Phys., Vol. 44, No. 2 (2003) p. 528-33

Physics

Quantum Physics

submitted to special issue of JMP on QIT

Scientific paper

Quantum process tomography is a procedure by which an unknown quantum operation can be fully experimentally characterized. We reinterpret Choi's proof of the fact that any completely positive linear map has a Kraus representation [Lin. Alg. and App., 10, 1975] as a method for quantum process tomography. Furthermore, the analysis for obtaining the Kraus operators are particularly simple in this method.

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